128084225 has 12 divisors (see below), whose sum is σ = 167184240. Its totient is φ = 97074000.

The previous prime is 128084207. The next prime is 128084227. The reversal of 128084225 is 522480821.

It is not a de Polignac number, because 128084225 - 2¹⁰ = 128083201 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 128084191 and 128084200.

It is not an unprimeable number, because it can be changed into a prime (128084227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 134351 + ... + 135300.

It is an arithmetic number, because the mean of its divisors is an integer number (13932020).

Almost surely, 2^128084225 is an apocalyptic number.

It is an amenable number.

128084225 is a deficient number, since it is larger than the sum of its proper divisors (39100015).

128084225 is a wasteful number, since it uses less digits than its factorization.

128084225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269680 (or 269675 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 32.

The square root of 128084225 is about 11317.4301411584. The cubic root of 128084225 is about 504.0789341076.

The spelling of 128084225 in words is "one hundred twenty-eight million, eighty-four thousand, two hundred twenty-five".